Index: branches/5.1.x/core/install/upgrades.sql
===================================================================
diff -u -N -r13188 -r13368
--- branches/5.1.x/core/install/upgrades.sql	(.../upgrades.sql)	(revision 13188)
+++ branches/5.1.x/core/install/upgrades.sql	(.../upgrades.sql)	(revision 13368)
@@ -1640,9 +1640,9 @@
 
 UPDATE Events e
 SET e.l1_Description = (
-	SELECT p.Translation
+	SELECT p.l<%PRIMARY_LANGUAGE%>_Translation
 	FROM <%TABLE_PREFIX%>Phrase p
-	WHERE (p.Phrase = e.Description) AND (p.LanguageId = 1)
+	WHERE p.Phrase = e.Description
 );
 
 UPDATE Events SET Description = l1_Description;
